Vibration-induced Cassie-Wenzel wetting transition on rough surfaces

Edward Bormashenko, Roman Pogreb, Gene Whyman, Yelena Bormashenko, Mordechai Erlich

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161 Scopus citations

Abstract

The wetting transition is revealed for a water drop placed on a honeycomb polymer pattern under the action of vibration. Water penetration into the pattern cavities is accompanied by a change in the apparent contact angle. The Cassie-Wenzel wetting transition is confirmed by the model calculation. The threshold pressure in the drop for this transition is determined.

Original languageEnglish
Article number201917
JournalApplied Physics Letters
Volume90
Issue number20
DOIs
StatePublished - 2007

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